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// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/GL/GLInterfaceBase.h"
#include "Core/Core.h"
#include "Core/HW/Memmap.h"
#include "VideoBackends/Software/DebugUtil.h"
#include "VideoBackends/Software/EfbCopy.h"
#include "VideoBackends/Software/EfbInterface.h"
#include "VideoBackends/Software/SWRenderer.h"
#include "VideoBackends/Software/TextureEncoder.h"
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/Fifo.h"
static const float s_gammaLUT[] =
{
1.0f,
1.7f,
2.2f,
1.0f
};
namespace EfbCopy
{
static void CopyToXfb(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc, float Gamma)
{
GLInterface->Update(); // update the render window position and the backbuffer size
INFO_LOG(VIDEO, "xfbaddr: %x, fbwidth: %i, fbheight: %i, source: (%i, %i, %i, %i), Gamma %f",
xfbAddr, fbWidth, fbHeight, sourceRc.top, sourceRc.left, sourceRc.bottom, sourceRc.right, Gamma);
EfbInterface::yuv422_packed* xfb_in_ram = (EfbInterface::yuv422_packed*) Memory::GetPointer(xfbAddr);
EfbInterface::CopyToXFB(xfb_in_ram, fbWidth, fbHeight, sourceRc, Gamma);
}
static void CopyToRam()
{
u8 *dest_ptr = Memory::GetPointer(bpmem.copyTexDest << 5);
TextureEncoder::Encode(dest_ptr);
}
void ClearEfb()
{
u32 clearColor = (bpmem.clearcolorAR & 0xff) << 24 | bpmem.clearcolorGB << 8 | (bpmem.clearcolorAR & 0xff00) >> 8;
int left = bpmem.copyTexSrcXY.x;
int top = bpmem.copyTexSrcXY.y;
int right = left + bpmem.copyTexSrcWH.x;
int bottom = top + bpmem.copyTexSrcWH.y;
for (u16 y = top; y <= bottom; y++)
{
for (u16 x = left; x <= right; x++)
{
EfbInterface::SetColor(x, y, (u8*)(&clearColor));
EfbInterface::SetDepth(x, y, bpmem.clearZValue);
}
}
}
void CopyEfb()
{
EFBRectangle rc;
rc.left = (int)bpmem.copyTexSrcXY.x;
rc.top = (int)bpmem.copyTexSrcXY.y;
// flipper represents the widths internally as last pixel minus starting pixel, so
// these are zero indexed.
rc.right = rc.left + (int)bpmem.copyTexSrcWH.x + 1;
rc.bottom = rc.top + (int)bpmem.copyTexSrcWH.y + 1;
if (!Fifo::g_bSkipCurrentFrame)
{
if (bpmem.triggerEFBCopy.copy_to_xfb)
{
float yScale;
if (bpmem.triggerEFBCopy.scale_invert)
yScale = 256.0f / (float)bpmem.dispcopyyscale;
else
yScale = (float)bpmem.dispcopyyscale / 256.0f;
float xfbLines = ((bpmem.copyTexSrcWH.y + 1.0f) * yScale);
if (yScale != 1.0)
WARN_LOG(VIDEO, "yScale of %f is currently unsupported", yScale);
if ((u32)xfbLines > MAX_XFB_HEIGHT)
{
INFO_LOG(VIDEO, "Tried to scale EFB to too many XFB lines (%f)", xfbLines);
xfbLines = MAX_XFB_HEIGHT;
}
CopyToXfb(bpmem.copyTexDest << 5,
bpmem.copyMipMapStrideChannels << 4,
(u32)xfbLines,
rc,
s_gammaLUT[bpmem.triggerEFBCopy.gamma]);
}
else
{
CopyToRam(); // FIXME: should use the rectangle we have already created above
}
}
}
}
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